Malicious PDF — malware analysis report

Static analysis result for SHA-256 03022a4b3c30ba85…

MALICIOUS

PDF

38.0 KB Created: 2020-08-07 03:08:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4f4bc3275726415692ac5b163276d952 SHA-1: 790f4a06f97c7ed023cd6f028f6addaf28189077 SHA-256: 03022a4b3c30ba857d8f17fd691fb91dd51a13f61d44b6539aa32578cb922fdf
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous links to a redirector service, which in turn points to a link farm of other PDFs. This behavior is indicative of a phishing or scam campaign aiming to distribute further malicious content. The ML classifier strongly supports the malicious verdict, and the presence of embedded URLs confirms the redirection attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://ttraff.cc/pify?keyword=attestation+d+%25C3%25A9lection+de+domicile+pdf In PDF document text
    • http://buzudefu.littlesilverems.com/uploads/1/3/1/4/131452977/ec1d8c3ad930f95.pdfIn PDF document text
    • http://nexidulu.perrymusicals.com/uploads/1/3/2/6/132682076/52f27.pdfIn PDF document text
    • http://files.kateschroederlpc.com/uploads/1/3/2/6/132695805/susitineniwufawedavi.pdfIn PDF document text
    • http://files.allezmag.co/uploads/1/3/0/7/130775126/kedibonigozet_lolubabemore_gamukemitotaj.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5122/9089/files/wozidowapamuzefupufuvab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9477/8791/files/tofuw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8950/7990/files/tunodunakiduduk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0965/4434/files/bulletproof_shopping_list.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9113/0536/files/1582036410.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2502/2621/files/madumimugixoku.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2563/6248/files/viwefi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8312/8214/files/cube_world_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3237/1622/files/95936488802.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3259/8938/files/cbse_sample_paper_2020_class_12_physics.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9775/9643/files/xegixikefugupaguwaviz.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005423.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5423 5336 bytes
SHA-256: 8127bf2fa3a1af615350697688a115a74d70e050aebf4f21002b4fdc07a2a54e
font_01_sfnt_off000065fc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65FC 10816 bytes
SHA-256: 23d80deb061265c6ca6039f99e83f7e8169068b5b68fdd6e4d9f9d27e13fbf6e

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